I could find nothing in my 2008 Internals book (Delaney) that would explain the difference. The differences are odd but are nothing that I expect will ever affect how I admin or develop for SQL Server...what about you?

__________________________________________________________________________________________________There are no special teachers of virtue, because virtue is taught by the whole community. --Plato

That's my understanding as well. All memory allocation is now coming from the same allocator and the best known side-effect of that change is that the 'max server memory' option now governs all memory SQL Server allocates, not just the buffer pool.

__________________________________________________________________________________________________There are no special teachers of virtue, because virtue is taught by the whole community. --Plato